Ultrasonic probe and ultrasonic endoscope system

Abstract

The application relates to an ultrasonic probe and an ultrasonic endoscope system. The ultrasonic probe comprises a shell, a sheath adjusting piece, a sheath, a rotating shaft, a spring tube, an ultrasonic transducer and a locking assembly. The sheath adjusting piece is connected to the shell, and one end of the sheath is fixed to the sheath adjusting piece. The rotating shaft is rotatably arranged in the shell. One end of the spring tube is connected to the rotating shaft, and the other end of the spring tube extends into the sheath. The ultrasonic transducer is arranged at the other end of the spring tube and located in the sheath. The spring tube is arranged in the sheath adjusting piece, and the spring tube can drive the ultrasonic transducer to rotate in the sheath under the drive of the rotating shaft. The locking assembly can move to an unlocking position and a locking position relative to the sheath adjusting piece. When in the locking position, the locking assembly locks the sheath adjusting piece. When in the unlocking position, the sheath adjusting piece is movably connected to the shell, and the sheath adjusting piece can drive the sheath to advance or retreat along the axial direction of the spring tube.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an ultrasonic probe and an ultrasonic endoscope system. BACKGROUND

[0002] The ultrasonic small probe is a device for transmitting and receiving ultrasonic waves by using a piezoelectric wafer, which mainly realizes the conversion of electric energy and acoustic energy by using the piezoelectric effect of the material. When performing an ultrasonic endoscopic examination, the front-end hose part of the ultrasonic small probe can enter the patient's cavity through the forceps channel of the endoscope to perform ultrasonic detection, and has the characteristics of small size, simple operation, clear imaging, etc.

[0003] The conventional ultrasonic probe generally has a spring tube, an ultrasonic transducer arranged at the end of the spring tube, and a sheath tube. During use, the spring tube can be stretched and contracted relative to the axial direction of the sheath tube, so that the ultrasonic transducer at the end of the spring tube is shifted in position, which causes the ultrasonic transducer at the other end of the spring tube to fail to align with the transparent window position of the sheath tube or even interfere with the end of the sheath tube, affecting the detection of the ultrasonic probe and even causing damage to the probe. Therefore, some conventional ultrasonic probes are designed with an axial adjustment of the shaft to drive the axial adjustment of the spring tube, so as to realize the stretching and contraction adjustment of the spring tube relative to the sheath tube. However, in actual use, the shell and other components need to be disassembled before adjustment, which is complicated to operate.

[0004] The above information disclosed in the background of the present application is only for understanding the background of the present application concept, and can include information that does not constitute the prior art. SUMMARY

[0005] Therefore, it is necessary to provide an ultrasonic probe and an ultrasonic endoscope system in view of the above problems.

[0006] An ultrasonic probe comprises:

[0007] a shell;

[0008] a sheath tube adjusting member connected to the shell;

[0009] a sheath tube, one end of which is fixed to the sheath tube adjusting member;

[0010] a shaft rotatably arranged in the shell;

[0011] a spring tube, one end of which is connected to the shaft, and the other end of which extends into the sheath tube;

[0012] an ultrasonic transducer arranged at the other end of the spring tube and located in the sheath tube;

[0013] A locking assembly is movable to an unlocked position and a locked position relative to the sheath adjusting member; in the locked position, the locking assembly locks the sheath adjusting member; in the unlocked position, the sheath adjusting member is movably connected to the housing, and the sheath adjusting member can drive the sheath to advance or retreat along the axial direction of the spring tube.

[0014] Before describing the technical effects that can be achieved by the embodiments of the present application, it should be first noted that conventional ultrasonic probes generally have a spring tube, an ultrasonic transducer arranged at the end of the spring tube, and a sheath. During use, the spring tube can stretch and contract relative to the axial direction of the sheath, causing the ultrasonic transducer at the end of the spring tube to deviate from its position, resulting in the ultrasonic transducer at the other end of the spring tube being unable to align with the transparent end of the sheath or even interfering with the sheath, which affects the detection accuracy of the ultrasonic probe. For this reason, some conventional ultrasonic probes are designed to allow the sheath to adjust the relative position with the spring tube, but in actual use, there are problems with the adjustment of the sheath, for example, in the patent application with the application number “202211483946.9”, the relative position between the sheath and the spring tube needs to be adjusted by first exposing all the components inside the entire front cover, which is not only inconvenient to operate, but also the repeated disassembly can reduce the overall sealing of the probe, and the components of the probe are more likely to be damaged.

[0015] However, in the face of the above problems, the ultrasonic probe described above can at least achieve the following beneficial effects: when the relative position between the sheath and the spring tube needs to be adjusted, the locking assembly can be moved to the unlocked position at this time, the sheath adjusting member is movably connected to the housing, and the sheath adjusting member can move relative to the housing and simultaneously drive the sheath to advance or retreat relative to the spring tube, so that the sheath and the ultrasonic transducer at the other end of the spring tube maintain a relatively reasonable position, that is, the sheath does not interfere with the ultrasonic transducer at the other end of the spring tube, and the ultrasonic transducer can properly align with the transparent end of the sheath to work normally. When the relative position between the sheath and the spring tube is adjusted to the right position, the locking assembly can be moved to the locked position, at which time the position of the sheath adjusting member is locked, and the sheath driven by the sheath adjusting member cannot move, that is, the relative position between the sheath and the spring tube is fixed, which can prevent the sheath from deviating from the position of the ultrasonic transducer at the other end of the spring tube during work. It should be emphasized that the entire adjustment process of the sheath does not require any components of the ultrasonic probe to be disassembled or removed, and only needs to simply adjust the locking assembly to the unlocked state, so that the sheath adjusting member can directly drive the sheath to move relative to the spring tube. Compared with the conventional scheme mentioned above, not only does it not need to be disassembled, but it is also more convenient to operate the sheath during adjustment, and it is beneficial to maintain the overall sealing of the ultrasonic probe and protect the components inside the ultrasonic probe.

[0016] In one of the embodiments, one end of the sheath adjusting member is arranged in the shell, and at least part of the inner circumferential surface of the shell is threadedly connected with at least part of the outer circumferential surface of the sheath adjusting member. In the unlocked position, the sheath adjusting member can be threadedly rotated relative to the shell and drive the sheath to advance or retreat along the axial direction of the spring tube. In the present application, the sheath adjusting member is threadedly connected with the shell, which means that when the sheath adjusting member is threadedly rotated relative to the shell, the movement of the sheath driven by the sheath adjusting member is more gentle, and the movement of the sheath can be more accurately controlled, so that more accurate and gentle position adjustment between the sheath and the ultrasonic transducer at the other end of the spring tube can be realized, and the risk of damage to the ultrasonic transducer caused by interference during the adjustment of the sheath is reduced.

[0017] In one of the embodiments, the sheath adjusting member comprises a main body and an adjusting end connected with the main body. The adjusting end protrudes radially outward from the outer circumferential surface of the main body. The adjusting end extends into the shell, and the outer circumferential surface of the adjusting end is threadedly connected with the inner circumferential surface of the shell. The ultrasonic probe further comprises a limiting member fixed with the shell. At least part of the limiting member is located on the side of the adjusting end close to the main body. The limiting member is used to limit the movement of the adjusting end in the axial direction of the shell. When the adjusting end is threadedly rotated relative to the shell, the adjusting end can drive the main body and the entire sheath adjusting member to move in the axial direction of the shell. Since the adjusting end protrudes radially outward from the outer circumferential surface of the main body, that is, the diameter of the adjusting end is larger, and the limiting member is located on the side of the adjusting end close to the main body, when the adjusting end is threadedly rotated relative to the shell and drives the entire sheath adjusting member to extend outward, the adjusting end will abut against the limiting member when the adjusting end moves to the position of the limiting member, and the adjusting end cannot continue to move. In other words, the limiting member can prevent the adjusting end and the entire sheath adjusting member from extending outward from the shell without limit, so that the sheath adjusting member cannot be completely separated from the shell, and the sealing effect of the entire ultrasonic probe can be maintained.

[0018] In one of the embodiments, the sheath adjusting member comprises a main body and an adjusting end connected to the main body, the adjusting end protrudes radially outward from the outer circumferential surface of the main body, the adjusting end extends into the shell and the outer circumferential surface of the adjusting end is threadedly connected to the inner circumferential surface of the shell; the ultrasonic probe further comprises a limiting member, a limiting hole is formed through the side circumferential surface of the shell, the limiting member is arranged in the shell through the limiting hole, and one end of the limiting member is located on the side of the adjusting end close to the main body, the limiting member is used to limit the movement of the adjusting end in the axial direction of the shell. When the adjusting end is threadedly rotated relative to the shell, the adjusting end can drive the main body and the entire sheath adjusting member to move in the axial direction of the shell. Since the adjusting end protrudes radially outward from the outer circumferential surface of the main body, that is, the diameter of the adjusting end is larger, and one end of the limiting member is located on the side of the adjusting end close to the main body, when the adjusting end is threadedly rotated relative to the shell and drives the entire sheath adjusting member to extend outward, the adjusting end will abut against the limiting member when the adjusting end moves to the position of the limiting member, and the adjusting end cannot continue to move. In other words, the arrangement of the limiting member can prevent the adjusting end and the entire sheath adjusting member from extending outward without limitation, and can prevent the sheath adjusting member from being completely separated from the shell to maintain the sealing effect of the entire ultrasonic probe. In this embodiment, the limiting member is arranged in the shell through the limiting hole, and the hole wall of the limiting hole can limit and fix the limiting member. The limiting hole is formed on the shell, which means that the shell and the limiting member can be manufactured separately, and only the limiting member needs to be inserted into the limiting hole during subsequent assembly. Compared with the direct fixing of the limiting member to the shell, this arrangement can reduce the structural complexity of the shell and the manufacturing difficulty of the shell, improve the production efficiency and the production yield.

[0019] In one of the embodiments, the shell comprises a shell body and an extension connected to the edge of the shell body, one end of the sheath adjusting member extends into the shell body and is threadedly connected to the inner circumferential surface of the shell body, and the outer circumferential surface of the sheath adjusting member and the inner circumferential surface of the extension have a gap therebetween.

[0020] In one embodiment, the locking assembly comprises an inflation member arranged in the gap; in the locked position, the inflation member expands radially along the sheath adjusting member and abuts between the outer circumferential surface of the sheath adjusting member and the inner circumferential surface of the extension portion to fix the sheath adjusting member to the housing; in the unlocked position, the inflation member contracts radially along the sheath adjusting member to enable the sheath adjusting member to rotate threadedly relative to the housing. In the locked position, the inflation member expands to abut against the sheath adjusting member and the extension portion of the housing on both sides thereof, thereby increasing the friction to lock the sheath adjusting member to the housing, and the sheath adjusting member is fixed and unable to rotate threadedly relative to the housing. In the unlocked position, the inflation member contracts radially along the sheath adjusting member to decrease the friction to unlock the sheath adjusting member to the housing. In addition, in the locked position, the inflation member expands to abut against the sheath adjusting member and the extension portion of the housing on both sides thereof, thereby sealing the ultrasound probe from external moisture.

[0021] In one embodiment, the locking assembly comprises a locking sleeve arranged on the outer circumferential surface of the extension portion and threadedly connected to the extension portion, the locking sleeve being movable to the locked position and the unlocked position; in the locked position, the locking sleeve is close to and presses the inflation member, and the inflation member expands radially along the sheath adjusting member and abuts between the outer circumferential surface of the sheath adjusting member and the inner circumferential surface of the extension portion to fix the sheath adjusting member to the housing; in the unlocked position, the locking sleeve is away from the inflation member, and the inflation member contracts radially along the sheath adjusting member to enable the sheath adjusting member to rotate threadedly relative to the housing. In the locked position, the locking sleeve is close to and presses the inflation member, and the inflation member expands to abut against the sheath adjusting member and the extension portion of the housing on both sides thereof; in the unlocked position, the locking sleeve is away from the inflation member, and the inflation member contracts radially along the sheath adjusting member.

[0022] In one embodiment, the locking sleeve comprises a pressing portion and a sleeve body, the sleeve body is arranged on the outer circumferential surface of the extension portion and threadedly connected to the extension portion, one end of the pressing portion is connected to the edge of the sleeve body and arranged at an angle with the sleeve body, the other end of the pressing portion extends towards the outer circumferential surface of the sheath adjusting member, and the pressing portion is used to press the inflation member.

[0023] In one embodiment, the pressing portion extends in a ring shape along the circumference of the sleeve body.

[0024] In one of the embodiments, the bulging member is annular along the circumferential extension of the sheath adjusting member. The annular bulging member increases the contact area with the outer circumferential surface of the sheath adjusting member, which not only generates greater friction and locking effect in the locked state, but also has better sealing effect.

[0025] In one of the embodiments, one end of the extruding part abuts against the outer circumferential surface of the sheath adjusting member. This can minimize the gap between the extruding part and the outer circumferential surface of the sheath adjusting member, preventing external moisture and the like from entering.

[0026] In one of the embodiments, the locking assembly further comprises a pressing ring, which is arranged between the extruding part and the bulging member. In the locked position, the extruding part extrudes the bulging member through the pressing ring. The pressing ring can be adapted to the annular bulging member and abut against it, which has better limiting and extruding effect on the bulging member, improves the locking effect of the bulging member on the sheath adjusting member and the shell in the locked position, and can cooperate with the bulging member to generate better sealing effect in the locked state.

[0027] In one of the embodiments, the locking assembly further comprises a gasket, which is sleeved on the sheath adjusting member and located on the side of the bulging member away from the extruding part. In the locked position, the gasket and the pressing ring are located on the opposite sides of the bulging member in the direction in which the bulging member is extruded, which has better extruding effect on the bulging member, makes the bulging member deform and expand as much as possible along the radial direction of the sheath adjusting member, thereby improving the friction and ensuring the locking effect of the sheath adjusting member and the shell.

[0028] In one of the embodiments, the shell further comprises a sealing groove, and a sealing ring is arranged in the sealing groove. The sleeve body distal from the extruding part extends into the sealing groove and abuts against the sealing ring. The sealing ring can seal the gap between the sleeve body of the locking sleeve and the groove wall of the sealing groove. The groove wall of the sealing groove can limit the structure of the sleeve body of the locking sleeve. In the locked position, the sleeve body further extends into the sealing groove and extrudes the sealing ring, which deforms and has better sealing effect on the sealing.

[0029] In one of the embodiments, the outer side circumferential surface of the shell is further provided with an avoiding groove, the end of the sleeve body away from the extruding part extends into the avoiding groove, the side circumferential surface of the sleeve body is provided with a limiting groove, the limiting groove is provided with a sealing ring, and the sealing ring abuts between the groove wall of the limiting groove and the groove wall of the avoiding groove. The sleeve body of the locking sleeve is sleeved on the outer side circumferential surface of the shell, and there may be some gaps between the two, and water may enter the shell through the gaps to corrode the components inside the shell. The embodiment can solve the above problems. The end of the sleeve body away from the extruding part extends into the avoiding groove, and the limiting groove also extends into the avoiding groove. Therefore, the groove wall of the avoiding groove covers the limiting groove and the sealing ring inside the limiting groove. The sealing ring can abut between the groove wall of the avoiding groove and the groove wall of the limiting groove, so that the external water cannot enter through it, and a sealing effect is achieved. In addition, the sleeve body of the locking sleeve is threadedly connected with the outer side circumferential surface of the shell. When the locking sleeve is screwed, the sleeve body also moves along the axial direction of the shell. If the sleeve body is moved in the direction close to the limiting groove, the avoiding groove can also provide avoiding space for the extension of the end of the sleeve body. In other words, such a structure not only achieves a sealing effect but also provides sufficient space for the movement of the sleeve body of the locking sleeve.

[0030] In one of the embodiments, the shell further comprises a sealing part connected to the shell, the sealing part is arranged in a spaced manner with the outer side circumferential surface of the shell to form the avoiding groove, the avoiding groove is towards the end of the sleeve body away from the extruding part, and the avoiding groove can provide avoiding space for the movement of the sleeve body in the axial direction of the shell.

[0031] In one of the embodiments, the ultrasonic probe further comprises an elastic sleeve, the elastic sleeve is sleeved on the sheath adjusting part and located at the end of the sheath adjusting part away from the shell. The elastic sleeve can protect the sheath adjusting part to a certain extent, and can also serve as a starting point for operating the rotation of the sheath adjusting part relative to the shell, thereby improving the operation convenience.

[0032] In one of the embodiments, the outer side circumferential surface of the sheath adjusting part further forms a limiting protrusion, a limiting recess is correspondingly formed on the elastic sleeve, the elastic sleeve is interference-fitted on the sheath adjusting part, and the limiting protrusion is clamped into the limiting recess. Such a structure can improve the connection reliability of the sheath adjusting part and the elastic sleeve.

[0033] In one of the embodiments, the ultrasonic probe further comprises a sealing ring and a pressing sleeve arranged in the sheath adjusting member, an outer surface of the pressing sleeve is fixed to an inner surface of the sheath adjusting member, the sealing ring is arranged on an outer circumferential surface of the rotating shaft, the sealing ring abuts between the outer circumferential surface of the rotating shaft and an inner circumferential surface of the pressing sleeve, the sheath is arranged in the sheath adjusting member and is sleeved on the outer circumferential surface of the pressing sleeve, and the pressing sleeve is used to tightly fix the sheath in the sheath adjusting member. The sealing ring is arranged to prevent mutual abrasion between the outer circumferential surface of the rotating shaft and the inner circumferential surface of the pressing sleeve while achieving a sealing effect, thereby improving the service life of the ultrasonic probe.

[0034] In one of the embodiments, the spring tube is arranged in the sheath adjusting member, and the spring tube can drive the ultrasonic transducer to rotate in the sheath under the driving of the rotating shaft.

[0035] In one of the embodiments, the ultrasonic probe further comprises a waterproof cap, the waterproof cap is arranged on one end of the shell provided with the male connector by interference fit of a shaft hole.

[0036] In one of the embodiments, the ultrasonic probe further comprises a bearing, the bearing is sleeved on the rotating shaft and is located between the inner circumferential surface of the shell and the outer circumferential surface of the rotating shaft.

[0037] In one of the embodiments, the ultrasonic probe further comprises a male connector, the male connector is arranged on a side of the rotating shaft away from the spring tube along an axial direction of the rotating shaft, a receiving cavity is arranged in the rotating shaft, the ultrasonic probe further comprises a signal line, one end of the signal line is inserted into the spring tube to be connected with the ultrasonic transducer, and the other end of the signal line is arranged in the receiving cavity to be connected with the male connector.

[0038] The application further provides an ultrasonic endoscope system, which comprises a probe driver, an ultrasonic host, a display device and the ultrasonic probe according to any one of the above embodiments, a driving end of the probe driver is connected to a lever, the lever drives the rotating shaft to rotate, ultrasonic signals obtained by the ultrasonic transducer are transmitted to the ultrasonic host through a Luer connector, and ultrasonic images are generated through signal processing, and the display device is used to display the ultrasonic images.

[0039] The ultrasonic endoscope system comprises the ultrasonic probe of any of the above embodiments, and therefore also comprises at least the following beneficial effects: when the relative position of the sheath tube and the spring tube is to be adjusted, the locking assembly can be moved to the unlocked position, at which time the sheath tube adjusting member is movably connected to the housing and can move relative to the housing, and simultaneously drives the sheath tube to advance or retreat relative to the spring tube, so that the sheath tube and the ultrasonic transducer at the other end of the spring tube remain in a relatively reasonable position, i.e., the sheath tube does not interfere with the ultrasonic transducer at the other end of the spring tube, and the ultrasonic transducer can be properly aligned with the transparent window of the sheath tube to work normally. When the relative position of the sheath tube and the spring tube is adjusted to the right position, the locking assembly can be moved to the locked position, at which time the position of the sheath tube adjusting member is locked, and the sheath tube driven by the sheath tube adjusting member cannot move, i.e., the relative position of the sheath tube and the spring tube is fixed, which can prevent the position of the sheath tube relative to the ultrasonic transducer at the other end of the spring tube from deviating during work. It should be emphasized that the entire telescopic adjustment process of the sheath tube does not require any components of the ultrasonic probe to be disassembled or removed, and only needs to simply adjust the locking assembly to the unlocked state, so that the sheath tube adjusting member can be directly operated to drive the sheath tube to move relative to the spring tube. Compared with the traditional scheme mentioned above, the adjustment of the sheath tube is more convenient and does not require disassembly, which is conducive to maintaining the sealing of the entire ultrasonic probe and protecting various components in the ultrasonic probe. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0041] Figure 1 A structural schematic diagram of an ultrasonic probe provided by an embodiment of the present application.

[0042] Figure 2 A partial structural schematic diagram of an ultrasonic probe provided by an embodiment of the present application.

[0043] Figure 3 A partial structural schematic diagram of an ultrasonic probe provided by another embodiment of the present application.

[0044] Figure 4 A partial enlarged schematic diagram of an ultrasonic probe provided by another embodiment of the present application.

[0045] Figure 5 A further partial structural schematic diagram of an ultrasonic probe provided by an embodiment of the present application.

[0046] Figure 6An exploded structural schematic view of an ultrasonic probe according to an embodiment of the present application.

[0047] Figure 7 A structural schematic view of an ultrasonic endoscope system according to an embodiment of the present application.

[0048] Reference numerals:

[0049] 1. An ultrasonic endoscope system; 10, an ultrasonic probe; 20, a probe driver; 30, an ultrasonic main unit; 40, a display device; 100, a housing; 110, a shell; 111, a sealing groove; 112, a sealing ring; 120, an extension; 121, an interspace; 130, a sealing portion; 131, an avoiding groove; 140, a limiting hole; 200, a sheath adjusting member; 201, a main body; 202, an adjusting end; 210, a limiting protrusion; 300, a sheath; 400, a rotating shaft; 410, a containing cavity; 500, a spring tube; 600, an ultrasonic transducer; 700, a locking assembly; 710, an expanding member; 720, a locking sleeve; 721, a sleeve body; 7211, a limiting groove; 722, a pressing portion; 730, a pressing ring; 740, a gasket; 810, an elastic sleeve; 811, a limiting recess; 820, a sealing ring; 830, a pressing sleeve; 840, a bearing; 850, a male joint; 860, a signal line; 870, a waterproof cap; 880, a lever; 890, a lever mounting seat; 900, a limiting member. DETAILED DESCRIPTION

[0050] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art, that the present application can be practiced without some or all of these details under other conditions and / or methods. Therefore, the specific details disclosed herein should not be interpreted as limiting the scope of the present application but merely as exemplifying the preferred embodiments thereof.

[0051] Reference will now be made to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6In some embodiments, the present application provides an ultrasonic probe 10, which comprises a shell 100, a sheath adjusting member 200, a sheath 300, a rotating shaft 400, a spring tube 500, an ultrasonic transducer 600 and a locking assembly 700. The sheath adjusting member 200 is connected to the shell 100, and the sheath 300 is fixed to the sheath adjusting member 200. The rotating shaft 400 is rotatably arranged in the shell 100. One end 510 of the spring tube 500 is connected to the rotating shaft 400, and the other end 520 of the spring tube 500 extends into the sheath 300. The ultrasonic transducer 600 is arranged at the other end 520 of the spring tube 500 and located in the sheath 300. The spring tube 500 is arranged in the sheath adjusting member 200, and the spring tube 500 can drive the ultrasonic transducer 600 to rotate in the sheath 300 under the drive of the rotating shaft 400. The locking assembly 700 is connected to the shell 100 and can move relative to the sheath adjusting member 200 to an unlocked position and a locked position. When in the locked position, the locking assembly 700 locks the sheath adjusting member 200. When in the unlocked position, the sheath adjusting member 200 is movably connected to the shell 100, and the sheath adjusting member 200 can drive the sheath 300 to advance or retreat along the axis of the spring tube 500.

[0052] Before describing the technical effects that can be achieved by the embodiments of the present application, it should be first noted that conventional ultrasonic probes generally have a spring tube, an ultrasonic transducer arranged at the end of the spring tube, and a sheath. During use, the spring tube can stretch and contract relative to the axis of the sheath, causing the ultrasonic transducer at the end of the spring tube to deviate from its position, resulting in the ultrasonic transducer at the other end of the spring tube being unable to align with the transparent end of the sheath or even interfering with the sheath, which affects the detection accuracy of the ultrasonic probe. Therefore, some conventional ultrasonic probes are designed to allow the sheath to adjust the relative position of the spring tube, but in actual use, there is a problem of inconvenience in adjusting the sheath, for example, in the patent application with the application number “202211483946.9”, the entire front cover needs to be removed to expose the various components inside to adjust the relative position of the sheath and the spring tube. This not only makes the operation inconvenient, but also reduces the overall sealing of the probe and makes the components of the probe more prone to damage.

[0053] In the face of the above problems, the ultrasonic probe 10 can achieve the following beneficial effects: when the relative position of the sheath tube 300 and the spring tube 500 needs to be adjusted, the locking assembly can be moved to the unlocked position, the sheath tube adjusting part 200 is movably connected to the shell 100, the sheath tube adjusting part 200 can move relative to the shell 100, and the sheath tube 300 is driven to advance or retreat relative to the spring tube 500, so that the sheath tube 300 and the ultrasonic transducer 600 at the other end 520 of the spring tube 500 maintain a relatively reasonable position, that is, the sheath tube 300 does not interfere with the ultrasonic transducer 600 at the other end 520 of the spring tube 500, and the ultrasonic transducer 600 can be properly aligned with the transparent end of the sheath tube 300 to work normally. When the relative position of the sheath tube 300 and the spring tube 500 is adjusted to the right position, the locking assembly can be moved to the locked position, the position of the sheath tube adjusting part 200 is locked, and the sheath tube 300 driven by the sheath tube adjusting part 200 cannot move, that is, the relative position of the sheath tube 300 and the spring tube 500 is fixed, and the position deviation of the sheath tube 300 relative to the ultrasonic transducer 600 at the other end 520 of the spring tube 500 during work can be prevented. It should be emphasized that the entire sheath tube 300 stretching and retracting adjustment process does not need to disassemble or remove any part of the ultrasonic probe 10, only needs to simply adjust the locking assembly to the unlocked state, and then directly operate the sheath tube adjusting part 200 to drive the sheath tube 300 to move relative to the spring tube 500. Compared with the traditional scheme mentioned above, it is not necessary to disassemble, the operation is more convenient when adjusting the sheath tube 300, and the sealing of the ultrasonic probe 10 is maintained.

[0054] Specifically, as Figure 2As shown, in some embodiments, one end of the sheath adjusting member 200 is arranged in the housing 100, and at least part of the inner circumferential surface of the housing 100 is threadedly connected with at least part of the outer circumferential surface of the sheath adjusting member 200. In the unlocked position, the sheath adjusting member 200 can be threadedly rotated relative to the housing 100 to drive the sheath 300 to advance or retreat along the axial direction of the spring tube 500. The size of the ultrasonic probe 10 itself is extremely small. In the conventional ultrasonic probe 10, the relative position between the sheath 300 and the spring tube 500 is generally adjusted by directly pulling the sheath 300 along the axial direction of the spring tube 500, which has low adjustment accuracy. When the sheath 300 is too long relative to the spring tube 500, if the sheath 300 is directly pulled too fast to retract, the sheath 300 may collide with the ultrasonic transducer 600, which is likely to damage the ultrasonic transducer 600. In the ultrasonic probe 10 of the present application, the sheath adjusting member 200 is threadedly connected with the housing 100, which means that when the sheath adjusting member 200 is threadedly rotated relative to the housing 100, the movement of the sheath 300 driven by the sheath adjusting member 200 is more gentle, and the movement of the sheath 300 can be more accurately controlled. This can achieve more accurate and gentle position adjustment between the sheath 300 and the ultrasonic transducer 600 at the other end 520 of the spring tube 500, and reduce the risk of interference and damage to the ultrasonic transducer 600 during the adjustment of the sheath 300.

[0055] More specifically, as Figure 4As shown, in some embodiments, the sheath adjusting member 200 includes a main body 201 and an adjusting end 202 connected to the main body 201, the adjusting end 202 protrudes radially outward from the outer circumferential surface of the main body 201, the adjusting end 202 extends into the shell 100, and the outer circumferential surface of the adjusting end 202 is threadedly connected to the inner circumferential surface of the shell 100; the ultrasonic probe 10 further includes a limiting member 900, a limiting hole 140 is formed through the side circumferential surface of the shell 100, the limiting member 900 is arranged in the shell 100 through the limiting hole 140, and one end of the limiting member 900 is located on the side of the adjusting end 202 close to the main body 201, and the limiting member 900 is used to limit the movement of the adjusting end 202 in the axial direction of the shell 100. When the adjusting end 202 is threadedly rotated relative to the shell 100, the adjusting end 202 can drive the main body 201 and the entire sheath adjusting member 200 to move in the axial direction of the shell 100. Since the adjusting end 202 protrudes radially outward from the outer circumferential surface of the main body 201, that is, the diameter of the adjusting end 202 is larger, and one end of the limiting member 900 is located on the side of the adjusting end 202 close to the main body 201, when the adjusting end 202 is threadedly rotated relative to the shell 100 and drives the entire sheath adjusting member 200 to extend outward, when the adjusting end 202 moves to the position where the limiting member 900 is located, the adjusting end 202 will abut against the limiting member 900 and cannot continue to move. In other words, the arrangement of the limiting member 900 can prevent the adjusting end 202 and the entire sheath adjusting member 200 from extending outward without limit, and can prevent the sheath adjusting member 200 from being completely separated from the shell 100, thereby maintaining the sealing effect of the entire ultrasonic probe 10. Among them, the limiting member 900 is arranged in the shell 100 through the limiting hole 140, and the hole wall of the limiting hole 140 can limit and fix the limiting member 900; the limiting hole 140 is formed on the shell 100, which means that the shell 100 and the limiting member 900 can be manufactured separately, and only need to insert the limiting member 900 into the limiting hole 140 during subsequent assembly. Compared with the method of directly fixing the limiting member 900 to the shell 100, this arrangement can reduce the structural complexity of the shell 100 and the manufacturing difficulty of the shell 100, improve the production efficiency and the production yield.

[0056] More specifically, in some other embodiments, the sheath adjusting member 200 comprises a main body 201 and an adjusting end 202 connected with the main body 201, the adjusting end 202 protrudes radially outward from the outer circumferential surface of the main body 201, the adjusting end 202 extends into the shell 100 and the outer circumferential surface of the adjusting end 202 is threadedly connected with the inner circumferential surface of the shell 100; the ultrasonic probe 10 further comprises a limiting member 900, the limiting member 900 can be fixed to the shell 100 by means of integral molding, bonding or welding, etc., and the limiting member 900 is at least partially located at the side of the adjusting end 202 close to the main body 201, the limiting member 900 is used to limit the movement of the adjusting end 202 in the axial direction of the shell 100. When the adjusting end 202 is threadedly rotated relative to the shell 100, the adjusting end 202 can drive the main body 201 and the whole sheath adjusting member 200 to move in the axial direction of the shell 100. Since the adjusting end 202 protrudes radially outward from the outer circumferential surface of the main body 201, i.e. the diameter of the adjusting end 202 is larger, and the limiting member 900 is located at the side of the adjusting end 202 close to the main body 201, when the adjusting end 202 is threadedly rotated relative to the shell 100 and drives the whole sheath adjusting member 200 to extend outward, the adjusting end 202 will abut against the limiting member 900 and cannot continue to move when the adjusting end 202 moves to the position where the limiting member 900 is located. In other words, the limiting member 900 can prevent the adjusting end 202 and the whole sheath adjusting member 200 from extending outward without limit, and can prevent the sheath adjusting member 200 from completely coming out of the shell 100 and separating from the shell 100, thereby maintaining the sealing effect of the whole ultrasonic probe 10.

[0057] Please refer to Figure 2In some embodiments, the housing 100 comprises a shell 110 and an extension 120 connected to the edge of the shell 110, the extension 120 extending along the axial direction of the shell 110, one end of the sheath adjusting member 200 extending into the shell 110 and being threadedly connected to the inner circumferential surface of the shell 110, the outer circumferential surface of the sheath adjusting member 200 being spaced apart from the inner circumferential surface of the extension 120, and a gap 121 being formed between the outer circumferential surface of the sheath adjusting member 200 and the inner circumferential surface of the extension 120. The locking assembly 700 comprises an elastic expansion member 710, which is arranged between the outer circumferential surface of the sheath adjusting member 200 and the inner circumferential surface of the extension 120, i.e. in the gap 121. In the locked position, the expansion member 710 expands radially along the sheath adjusting member 200 and abuts between the outer circumferential surface of the sheath adjusting member 200 and the inner circumferential surface of the extension 120, so as to fix the sheath adjusting member 200 to the housing 100. In the unlocked position, the expansion member 710 contracts radially along the sheath adjusting member 200, so as to enable the sheath adjusting member 200 to rotate threadedly relative to the housing 100. In the locked position, the expansion member 710 expands and abuts against the sheath adjusting member 200 and the extension 120 of the housing 100 on both sides, so as to lock the sheath adjusting member 200 to the housing 100 by increasing the friction, and the sheath adjusting member 200 is fixed and unable to rotate threadedly relative to the housing 100. Conversely, in the unlocked position, the expansion member 710 contracts radially along the sheath adjusting member 200, so as to unlock the sheath adjusting member 200 from the housing 100 by reducing the friction. In addition, in the locked position, the expansion member 710 expands and abuts against the sheath adjusting member 200 and the extension 120 of the housing 100 on both sides, so as to also play a sealing role, preventing external moisture and the like from entering the ultrasonic probe 10.

[0058] Please refer to Figure 2In some embodiments, the locking assembly 700 includes a locking sleeve 720, which is sleeved on the outer circumferential surface of the extension 120 and threadedly connected with the extension 120. The locking sleeve 720 is movable to the locking position and the unlocking position. In the locking position, the locking sleeve 720 is close to and presses the expansion member 710, the expansion member 710 expands radially along the sheath adjusting member 200 and abuts between the outer circumferential surface of the sheath adjusting member 200 and the inner circumferential surface of the extension 120, so as to fix the sheath adjusting member 200 and the housing 100. In the unlocking position, the locking sleeve 720 is away from the expansion member 710, and the expansion member 710 contracts radially along the sheath adjusting member 200, so that the sheath adjusting member 200 can rotate relative to the housing 100. In the locking position, the locking sleeve 720 is close to and presses the expansion member 710, and the expansion member 710 expands and abuts against the sheath adjusting member 200 and the extension 120 of the housing 100. Conversely, in the unlocking position, the locking sleeve 720 is away from the expansion member 710, and the expansion member 710 contracts radially along the sheath adjusting member 200.

[0059] Further, as shown in Figure 2 some embodiments, the locking sleeve 720 includes a pressing portion 722 and a sleeve body 721. The sleeve body 721 is sleeved on the outer circumferential surface of the extension 120 and threadedly connected with the extension 120. One end of the pressing portion 722 is connected to the edge of the sleeve body 721 and arranged at an angle with the sleeve body 721. The other end of the pressing portion 722 extends towards the outer circumferential surface of the sheath adjusting member 200. The pressing portion 722 is used to press the expansion member 710.

[0060] Further, as shown in Figure 2 some embodiments, one end of the pressing portion 722 abuts against the outer circumferential surface of the sheath adjusting member 200. In this way, the gap between the pressing portion 722 and the outer circumferential surface of the sheath adjusting member 200 can be minimized, so as to prevent external moisture and the like from entering.

[0061] Further, in some embodiments, the pressing portion 722 extends along the circumference of the sleeve body 721 in a ring shape. The expansion member 710 extends along the circumference of the sheath adjusting member 200 in a ring shape. The ring-shaped expansion member 710 increases the contact area with the outer circumferential surface of the sheath adjusting member 200, which not only can generate greater friction and locking effect in the locked state, but also can achieve better sealing effect.

[0062] Specifically, as shown in Figure 2As shown, in some embodiments, the locking assembly 700 further comprises a compression ring 730, which is arranged between the extruding part 722 and the expanding member 710, and the extruding part 722 extrudes the expanding member 710 through the compression ring 730 in the locked position. The compression ring 730 can be adapted to the annular expanding member 710 and abut against it sufficiently, which can better limit and extrude the expanding member 710, improve the locking effect of the expanding member 710 on the sheath adjusting member 200 and the housing 100 in the locked position, and can cooperate with the expanding member 710 to produce a better sealing effect in the locked state.

[0063] More specifically, as Figure 2 As shown, in some embodiments, the locking assembly 700 further comprises a compression ring 730, which is arranged between the extruding part 722 and the expanding member 710, and the extruding part 722 extrudes the expanding member 710 through the compression ring 730 in the locked position. The compression ring 730 can be adapted to the annular expanding member 710 and abut against it sufficiently, which can better limit and extrude the expanding member 710, improve the locking effect of the expanding member 710 on the sheath adjusting member 200 and the housing 100 in the locked position, and can cooperate with the expanding member 710 to produce a better sealing effect in the locked state.

[0064] As shown, in some embodiments, the locking assembly 700 further comprises a compression ring 730, which is arranged between the extruding part 722 and the expanding member 710, and the extruding part 722 extrudes the expanding member 710 through the compression ring 730 in the locked position. The compression ring 730 can be adapted to the annular expanding member 710 and abut against it sufficiently, which can better limit and extrude the expanding member 710, improve the locking effect of the expanding member 710 on the sheath adjusting member 200 and the housing 100 in the locked position, and can cooperate with the expanding member 710 to produce a better sealing effect in the locked state. Figure 2 , in some embodiments, the outer side of the housing 110 is further provided with a sealing groove 111, and a sealing ring 112 is arranged in the sealing groove 111, and the end of the sleeve body 721 away from the extruding part 722 extends into the sealing groove 111 and abuts against the sealing ring 112. The sealing ring 112 can seal the gap between the sleeve body 721 of the locking sleeve 720 and the groove wall of the sealing groove 111, the groove wall of the sealing groove 111 can limit the structure of the sleeve body 721 of the locking sleeve 720, and in the locked position, the sleeve body 721 is extruded to the sealing ring 112 by extending further into the sealing groove 111, which deforms the sealing ring 112 and produces a better sealing effect.

[0065] As shown, in some embodiments, the locking assembly 700 further comprises a compression ring 730, which is arranged between the extruding part 722 and the expanding member 710, and the extruding part 722 extrudes the expanding member 710 through the compression ring 730 in the locked position. The compression ring 730 can be adapted to the annular expanding member 710 and abut against it sufficiently, which can better limit and extrude the expanding member 710, improve the locking effect of the expanding member 710 on the sheath adjusting member 200 and the housing 100 in the locked position, and can cooperate with the expanding member 710 to produce a better sealing effect in the locked state. Figure 3In some embodiments, the outer side circumferential surface of the shell 110 is further provided with an avoiding groove 131, one end of the sleeve 721 away from the extruding part 722 extends into the avoiding groove 131, the side circumferential surface of the sleeve 721 is provided with a limiting groove 7211, the limiting groove 7211 is provided with a sealing ring 112, the groove wall of the avoiding groove 131 covers the limiting groove 7211, and the sealing ring 112 abuts between the groove wall of the limiting groove 7211 and the groove wall of the avoiding groove 131. The sleeve 721 of the locking sleeve 720 is sleeved on the outer side circumferential surface of the shell 110, and there may be some gaps between the two, through which water enters the inside of the shell 110 to corrode the components inside; the arrangement of the present embodiment can solve the above-mentioned problem, the one end of the sleeve 721 away from the extruding part 722 extends into the avoiding groove 131, and the limiting groove 7211 also extends into the avoiding groove 131, so that the groove wall of the avoiding groove 131 covers the limiting groove 7211 and the sealing ring 112 inside, and the sealing ring 112 can abut between the groove wall of the avoiding groove 131 and the groove wall of the limiting groove 7211, so that the water outside cannot enter through it, and a sealing effect is achieved; in addition, the sleeve 721 of the locking sleeve 720 is threadedly connected with the outer side circumferential surface of the shell 110, when the locking sleeve 720 is screwed, the sleeve 721 also moves along the axial direction of the shell 110, if the sleeve 721 is moved in the direction close to the limiting groove 7211, the avoiding groove 131 can also provide avoiding space for the extension of the end of the sleeve 721; in other words, such a structure not only achieves a sealing effect, but also provides sufficient space for the movement of the sleeve 721 of the locking sleeve 720.

[0066] Further, as shown in Figure 3 In some embodiments, the shell 100 further comprises a sealing part 130 connected to the shell 110, the sealing part 130 is arranged in a spaced manner with the outer side circumferential surface of the shell 110 to form the avoiding groove 131, the avoiding groove 131 is towards one end of the sleeve 721 away from the extruding part 722, and the avoiding groove 131 can provide avoiding space for the movement of the sleeve 721 in the axial direction of the shell 110.

[0067] Please refer to Figure 1 In some embodiments, the ultrasonic probe 10 further comprises an elastic sleeve 810, the elastic sleeve 810 can be a soft rubber sleeve, and the elastic sleeve 810 is fixedly sleeved on the sheath adjusting part 200 and located at one end of the sheath adjusting part 200 away from the shell 100. The elastic sleeve 810 can play a certain protective role for the sheath adjusting part 200, and can also serve as a starting point for operating the rotation of the sheath adjusting part 200 relative to the shell 110 of the shell 100, thereby improving the operation convenience.

[0068] Specifically, as shown in Figure 1As shown, in some embodiments, the outer circumferential surface of the sheath adjusting member 200 further forms a limiting protrusion, and a limiting recess 811 is correspondingly formed on the elastic sleeve 810, the elastic sleeve 810 is tightly sleeved on the sheath adjusting member 200, and the limiting protrusion is clamped in the limiting recess 811. Such a structure can improve the connection reliability of the sheath adjusting member 200 and the elastic sleeve 810 while making the gap between the sheath adjusting member 200 and the elastic sleeve 810 as small as possible, which is beneficial to sealing.

[0069] Specifically, as Figure 2 shown, in some embodiments, the ultrasonic probe 10 further comprises a sealing ring 820 and a pressing sleeve 830 arranged in the sheath adjusting member 200, and the outer surface of the pressing sleeve 830 and the inner surface of the sheath adjusting member 200 can be fixed by bonding, welding, clamping, threaded connection or the like. The sealing ring 820 is sleeved on the outer circumferential surface of the rotating shaft 400, and the sealing ring 820 abuts between the outer circumferential surface of the rotating shaft 400 and the inner circumferential surface of the pressing sleeve 830 to form a dynamic seal, thereby ensuring the sealing between the pressing sleeve 830 and the rotating shaft during relative movement. In addition, the sealing ring 820 can prevent mutual abrasion between the outer circumferential surface of the rotating shaft 400 and the inner circumferential surface of the pressing sleeve 830 while achieving the sealing effect, thereby improving the service life of the ultrasonic probe 10.

[0070] The sheath 300 is arranged in the sheath adjusting member 200 and sleeved on the outer circumferential surface of the pressing sleeve 830. Further, a substantially horn-shaped opening is formed in the sheath adjusting member 200 towards the end of the rotating shaft 400, the sheath 300 is sleeved on the front end tapered surface of the pressing sleeve and extends into the opening, and the front end tapered surface of the pressing sleeve 830 is used to press the sheath 300 tightly to prevent the sheath 300 from loosening from the sheath adjusting member 200, thereby ensuring the stability of the sheath 300. Specifically, as Figure 2 shown, in some embodiments, the ultrasonic probe 10 further comprises a waterproof cap 870, which is arranged on one end of the housing 100 provided with the male connector 850 by interference fit through the shaft hole to play a waterproof role.

[0071] Specifically, as Figure 2 shown, in some embodiments, the ultrasonic probe 10 further comprises a bearing 840, which is sleeved on the rotating shaft 400 and located between the inner circumferential surface of the housing 100 and the outer circumferential surface of the rotating shaft 400.

[0072] Specifically, as Figure 1 and Figure 6As shown in some embodiments, the ultrasonic probe 10 further comprises a plunger mounting seat 890 arranged in the barrel and a plunger 880 connected with the plunger mounting seat 890, the plunger 880 can be connected with the output end of the power device to transmit power.

[0073] Specifically, as Figure 2 As shown in some embodiments, the ultrasonic probe 10 further comprises a male connector 850, which can be a Luer connector, arranged on the side of the rotating shaft 400 away from the spring tube 500 along the axial direction of the rotating shaft 400, a receiving cavity 410 is arranged in the rotating shaft 400, the ultrasonic probe 10 further comprises a signal line 860, one end of the signal line 860 extends into the spring tube 500 to be connected with the ultrasonic transducer 600, the other end of the signal line 860 extends through the receiving cavity 410 to be connected with the male connector 850.

[0074] In addition, as Figure 7 As shown in some embodiments, the ultrasonic endoscope system comprises a probe driver 20, an ultrasonic main machine 30, a display device 40 and the ultrasonic probe 10 according to any one of the above embodiments, the driving end of the probe driver 20 is connected with the plunger 880, the plunger 880 drives the rotating shaft 400 to rotate, the ultrasonic signal obtained by the ultrasonic transducer 600 is transmitted to the ultrasonic main machine 30 through the male connector 840 (which can be a Luer connector), and the ultrasonic image is generated through signal processing, the display device 40 is used for displaying the ultrasonic image.

[0075] The ultrasonic endoscope system comprises the ultrasonic probe 10 of any of the above embodiments, and therefore also comprises at least the following beneficial effects: when the relative position of the sheath tube 300 and the spring tube 500 is to be adjusted, the locking assembly can be moved to the unlocked position, at which time the sheath tube adjusting member 200 is movably connected to the housing 100, and the sheath tube adjusting member 200 can move relative to the housing 100 and simultaneously drive the sheath tube 300 to advance or retreat relative to the spring tube 500, so that the sheath tube 300 and the ultrasonic transducer 600 at the other end 520 of the spring tube 500 remain at a relatively reasonable position relative to each other, i.e., the sheath tube 300 does not interfere with the ultrasonic transducer 600 at the other end 520 of the spring tube 500, and the ultrasonic transducer 600 can be properly aligned with the transparent end of the sheath tube 300 to work normally. When the relative position of the sheath tube 300 and the spring tube 500 is adjusted to the right position, the locking assembly can be moved to the locked position, at which time the position of the sheath tube adjusting member 200 is locked, and the sheath tube 300 driven by the sheath tube adjusting member 200 cannot move, i.e., the relative position of the sheath tube 300 and the spring tube 500 is fixed, which can prevent the position of the sheath tube 300 relative to the ultrasonic transducer 600 at the other end 520 of the spring tube 500 from deviating during work. It should be emphasized that the entire extension and retraction adjustment process of the sheath tube 300 does not require any components of the ultrasonic probe 10 to be disassembled or removed, and only requires the locking assembly to be simply adjusted to the unlocked state, so that the sheath tube adjusting member 200 can be directly operated to drive the sheath tube 300 to move relative to the spring tube 500. Compared with the traditional solution mentioned above, the adjustment of the sheath tube 300 is more convenient and does not require disassembly, which is conducive to maintaining the sealing of the entire ultrasonic probe 10 and protecting the various components in the ultrasonic probe 10.

[0076] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0077] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0078] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0079] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0080] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0082] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0083] In the description of this specification, references to terms such as "an embodiment," "another implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

Claims

1. An ultrasound probe, characterized by, The application relates to an ultrasonic probe, which comprises the following parts: a shell, which comprises a casing and an extension connected to the edge of the casing; a sheath adjusting part connected to the shell, one end of the sheath adjusting part extending into the casing and being threadedly connected to the inner side circumferential surface of the casing, the other end of the sheath adjusting part being arranged outside the casing, a gap being formed between the outer side circumferential surface of the sheath adjusting part and the inner side circumferential surface of the extension; a sheath, one end of the sheath being fixed to the sheath adjusting part; a rotating shaft, which is arranged in the shell in a rotatable mode; a spring tube, one end of the spring tube being connected to the rotating shaft, the other end of the spring tube extending into the sheath; an ultrasonic transducer, which is arranged at the other end of the spring tube and is located in the sheath; a locking assembly, which comprises a locking sleeve and an expanding part, the expanding part being arranged in the gap, the locking sleeve being sleeved on the outer side circumferential surface of the extension and being threadedly connected to the extension, the locking sleeve being capable of moving to a locking position and an unlocking position, when the locking sleeve is close to and presses the expanding part in the locking position, the expanding part expands along the radial direction of the sheath adjusting part and abuts against the outer side circumferential surface of the sheath adjusting part and the inner side circumferential surface of the extension, so that the sheath adjusting part is fixed to the shell; when the locking sleeve is away from the expanding part in the unlocking position, the expanding part contracts along the radial direction of the sheath adjusting part, so that the sheath adjusting part can be threadedly rotated relative to the shell and drives the sheath to advance or retreat along the axial direction of the spring tube.

2. The ultrasound probe of claim 1, wherein, The sheath adjusting part comprises a main body and an adjusting end connected to the main body, the adjusting end protruding outwardly from the outer side circumferential surface of the main body in the radial direction, the adjusting end extending into the shell and the outer side circumferential surface of the adjusting end being threadedly connected to the inner side circumferential surface of the shell; the ultrasonic probe further comprises a limiting part, which is fixed to the shell and is located at least partially on the side of the adjusting end close to the main body, the limiting part being used for limiting the movement of the adjusting end in the axial direction of the shell.

3. The ultrasound probe of claim 1, wherein, The sheath adjusting part comprises a main body and an adjusting end connected to the main body, the adjusting end protruding outwardly from the outer side circumferential surface of the main body in the radial direction, the adjusting end extending into the shell and the outer side circumferential surface of the adjusting end being threadedly connected to the inner side circumferential surface of the shell; the ultrasonic probe further comprises a limiting part, a limiting hole being formed through the side circumferential surface of the shell, the limiting part being arranged in the shell through the limiting hole, one end of the limiting part being located on the side of the adjusting end close to the main body, the limiting part being used for limiting the movement of the adjusting end in the axial direction of the shell.

4. The ultrasound probe of claim 1, wherein, The locking sleeve comprises a pressing part and a sleeve body, the sleeve body being sleeved on the outer side circumferential surface of the extension and being threadedly connected to the extension, one end of the pressing part being connected to the edge of the sleeve body, the other end of the pressing part extending towards the outer side circumferential surface of the sheath adjusting part, the pressing part being used for pressing the expanding part.

5. The ultrasound probe of claim 4, wherein, The pressing part extends in a ring shape along the circumferential direction of the sleeve body.

6. The ultrasound probe of claim 4, wherein, The expanding part extends in a ring shape along the circumferential direction of the sheath adjusting part.

7. The ultrasound probe of claim 4, wherein, One end of the extrusion part abuts against the outer circumferential surface of the sheath adjusting member.

8. The ultrasound probe of claim 4, wherein, The locking assembly further comprises a compression ring arranged between the extrusion part and the expansion member, and the extrusion part extrudes the expansion member through the compression ring in the locked position.

9. The ultrasound probe of claim 4, wherein, The locking assembly further comprises a gasket sleeved on the sheath adjusting member and located on the side of the expansion member away from the extrusion part.

10. The ultrasound probe of claim 4, wherein, The shell is further provided with a sealing groove, and a sealing ring is arranged in the sealing groove; one end of the sleeve body away from the extrusion part extends into the sealing groove and abuts against the sealing ring.

11. The ultrasound probe of claim 4, wherein, The shell is further provided with an avoiding groove, and one end of the sleeve body away from the extrusion part extends into the avoiding groove; a limiting groove is arranged on the side circumferential surface of the sleeve body, and a sealing ring is arranged in the limiting groove and abuts against the groove wall of the limiting groove and the groove wall of the avoiding groove.

12. The ultrasound probe of any one of claims 1 to 11, wherein, The ultrasonic probe further comprises an elastic sleeve sleeved on the sheath adjusting member and located at the end of the sheath adjusting member away from the shell. And / or, the ultrasonic probe further comprises a sealing ring and a compression sleeve arranged in the sheath adjusting member; the outer surface of the compression sleeve is fixed to the inner surface of the sheath adjusting member; the sealing ring is sleeved on the outer circumferential surface of the rotating shaft and abuts against the outer circumferential surface of the rotating shaft and the inner circumferential surface of the compression sleeve; the sheath is arranged in the sheath adjusting member and sleeved on the outer circumferential surface of the spring tube; and the compression sleeve is used to tightly fix the sheath in the sheath adjusting member. And / or, the spring tube is arranged in the sheath adjusting member, and the spring tube can drive the ultrasonic transducer to rotate in the sheath under the drive of the rotating shaft. And / or, the ultrasonic probe further comprises a bearing sleeved on the rotating shaft and located between the inner circumferential surface of the shell and the outer circumferential surface of the rotating shaft. And / or, the ultrasonic probe further comprises a male connector arranged on the side of the rotating shaft away from the spring tube along the axial direction of the rotating shaft; a receiving cavity is arranged in the rotating shaft; and the ultrasonic probe further comprises a signal line, one end of the signal line extends into the spring tube to be connected with the ultrasonic transducer, and the other end of the signal line is arranged in the receiving cavity to be connected with the male connector.

13. An ultrasonic endoscope system characterized by comprising: The ultrasonic probe comprises: a probe driver, an ultrasonic host, a display device, and the ultrasonic probe according to any one of claims 1 to 12; the driving end of the probe driver is connected to a lever, the lever drives the rotating shaft to rotate; the ultrasonic signal obtained by the ultrasonic transducer is transmitted to the ultrasonic host through a Luer connector, and an ultrasonic image is generated through signal processing; and the display device is used to display the ultrasonic image.

Images